package com.sky.service.impl;

import com.github.pagehelper.Page;
import com.github.pagehelper.PageHelper;
import com.sky.constant.StatusConstant;
import com.sky.context.BaseContext;
import com.sky.dto.CategoryDTO;
import com.sky.dto.CategoryPageQueryDTO;
import com.sky.entity.Category;
import com.sky.mapper.CategoryMapper;
import com.sky.result.PageResult;
import com.sky.service.CategoryService;
import org.springframework.beans.BeanUtils;
import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.stereotype.Service;

import java.time.LocalDateTime;
import java.util.List;

/**
 * TODO
 *
 * @Author mr.Candy
 * @Date 2025/5/2119:29
 */
@Service
public class CategoryServiceImpl implements CategoryService {
    @Autowired
    private CategoryMapper categoryMapper;


    @Override
    public List<Category> list(Integer type) {
        return categoryMapper.list(type);
    }

    /**
     * 修改分类
     * @param dto
     * @return
     */
    @Override
    public void update(CategoryDTO dto) {
        Category category = new Category();
        BeanUtils.copyProperties(dto,category);
        category.setUpdateTime(LocalDateTime.now());
        category.setUpdateUser(BaseContext.getCurrentId());
        categoryMapper.update(category);
    }

    /**
     * 根据id删除分类
     * @param id
     * @return
     */
    @Override
    public void deleteById(Long id) {
        // TODO 查询当前分类是否关联了菜品，如果关联了就抛出业务异常
        // TODO 查询当前分类是否关联了套餐，如果关联了就抛出业务异常
        //删除分类数据
        categoryMapper.deleteById(id);
    }

    /**
     * 分类分页查询
     *
     * @param dto
     * @return
     */
    @Override
    public PageResult pageQuery(CategoryPageQueryDTO dto) {
        PageHelper.startPage(dto.getPage(), dto.getPageSize());
        Page<Category> page = categoryMapper.pageQuery(dto);
        return new PageResult(page.getTotal(),page.getResult());
    }

    /**
     * 新增分类
     *
     * @param dto
     */
    @Override
    public void save(CategoryDTO dto) {
        //把dto的属性拷贝给实体类，然后设置其他属性，最后把实体类存到数据库
        Category category = new Category();
        BeanUtils.copyProperties(dto,category);

        category.setStatus(StatusConstant.DISABLE);//默认是禁用状态0
        category.setCreateTime(LocalDateTime.now());
        category.setUpdateTime(LocalDateTime.now());
        category.setCreateUser(BaseContext.getCurrentId());
        category.setUpdateUser(BaseContext.getCurrentId());

        categoryMapper.save(category);

    }
}
